Sign In to View Pricing & Availability
- Series AS Air Separators are used in commercial and residential, hydronic heating applications to separate air from water in the piping system. They consist of a heavy, cast-iron body construction with a 1/2 in. female threaded connection for an expansion tank, and a 1/8 in. female threaded connection for a float vent. Series AS provides continuous purging and venting of air in the system when installed with WATTS® Model ET expansion tank and Model FV4 float-vent. Maximum Pressure: 125 psi (8.6 bar).
WATTS® Air Separator, Series: AS, 1-1/4 in Nominal, FNPT, 80 psi Working, Cast Iron, Import
- 1/2 in tappings on each side for fill valve piping
- Furnished with tappings for expansion tank and air vent
- Provides complete, purging and venting of air in the system when installed in conjunction with the WATTS® FV4M1 or Duo Vent float vents
- 80 psi max working pressure at 275 deg F
- Connection TypeFNPTDomestic / ImportImportMaterialCast IronNominal Size1-1/4 inWorking Pressure80 psiManufacturerWatts Water TechnologiesManufacturer #0858536SeriesAS Series